XSelectInput

NAME

SYNTAX

ARGUMENTS

display

Specifies the connection to the X server.

event_mask

Specifies the event mask.

w

Specifies the window whose events you are interested in.

DESCRIPTION

The
XSelectInput
function requests that the X server report the events associated with the
specified event mask.
Initially, X will not report any of these events.
Events are reported relative to a window.
If a window is not interested in a device event, it usually propagates to
the closest ancestor that is interested,
unless the do_not_propagate mask prohibits it.

Setting the event-mask attribute of a window overrides any previous call
for the same window but not for other clients.
Multiple clients can select for the same events on the same window
with the following restrictions:

•

Multiple clients can select events on the same window because their event masks
are disjoint.
When the X server generates an event, it reports it
to all interested clients.

•

Only one client at a time can select
CirculateRequest,
ConfigureRequest,
or
MapRequest
events, which are associated with
the event mask
SubstructureRedirectMask.

•

Only one client at a time can select
a
ResizeRequest
event, which is associated with
the event mask
ResizeRedirectMask.

•

Only one client at a time can select a
ButtonPress
event, which is associated with
the event mask
ButtonPressMask.